Actually that's not the right one. After looking a bit further, that's the "other" Madsen-built MG - the "Staed" ?

Apparently Mr. Madsen created quite a few items, including a tube-style SMG.

The one I'm interested in is the one listed on IMA-USA's website that looks similar to a Bren with the top-feed magazine. I don't know the designation, but it is 8mm. Honestly, since there is no pistol grip, I wonder if this would be a California-legal build if the magazine were plugged. Now THAT would be something!

My mistake! The Madsens I considered awhile back looked like your picture, but were 30-06 I'm pretty sure.
There were several " Weaponeer" members who bought them at the time.
That SILC kit I posted ,might be the same type kit Sarco has advertised for a few years.

" Save a tree...........Eat A Beaver!"

I seldom talk to liberals.............................. But when I do, I order fries............

Jerry -- how do those things get enough bolt throw to operate? Does the bolt project out the back of the receiver during operation? My Lord -- that must be a comforting feeling!!

They do not have a bolt. These were designed on the Martini action. Instead of a reciprocating bolt, they have a breech block & "Rube Goldberg" action to strip rounds, chamber & eject. 400rpm tops & 120 rpm in reality. ( according to my book)
The IMA picture is accurate.

My first post is about one of my favorites......
Madsens are really fascinating actions......a combination of long recoil, a cammed martini style breechblock, and seperate cartridge rammers and ejector.
The barrel and extension recoils approx 2.5"-3". As the barrel/extension recoils, the breechblock is cammed upward by a switchplate in the receiver, and the ejector throws the fired case from the chamber, and downward out of the receiver. As the barrel/extension begins to move forward for the next shot, the breechbloch is cammed downward, and a feed arm rams a cartridge from the feed tray into the chamber. Immediately before firing/return to battery, the breechblock is cammed upwards about another 1" to close.......

It's not really open bolt, because the block swings up/down, but when the weapon is cocked, the barrel/extension is held to the rear of its travel, and is released to travel forward when the trigger is pulled. The hammer is tripped/released at the moment of breech closure.

The IMA guns are Portuguese contract 1940 Models in 8mm. IMA pretty much trashes the innards and receiver in making a dummy from them.

The guns sold by Dealer Warehouse years ago were 1946 Chilean contract guns in .30-06, and were cut by a "surgeon".....the kits now being sold without receiver sections are really only good for parts.....the magazine housing section of the receiver is complex, and contains an internal feedway.....not a dremel tool kinda job to fabricate this

They would be a great candidate for a semi.....no pistol grip/flash hider/bayonet lug.....I don't see any 922 worries.

They show up every now and then.....a really nice kit went on gunbroker a month or so ago for something like 5-600.

Welcome to Gunco, and THANKS for that info! That is a really nice build you have there.

I guess I didn't pay that much attention because I could have sworn it was more "beefy" at the receiver. But I did search about that "Rube Goldberg" cam block and that is very interesting. It literally spins in place!

The one I saw did not have the buttstock elevation monopod, but it did have the leather mag pouch. No sling or AA sight. The mags looked pretty beat up, in comparison the one I ordered from IMA (for my .45-70 project) was in pristine condition (emphasis on WAS )

You tell me they aren't available and that makes me want one even more